Testimonials

At least one optimistic forecast says that 10% of new homes constructed in the U.S. could be of the subterranean type.  One innovation that could turn this prediction into a reality is a patented kit for an underground house developed by Performance Building Systems, Inc. of Durango, Colorado.

Newsweek International

As an independent contractor in an area with no Performance Building Systems, Inc. dealers, I am very satisfied with their structure and the kit itself.  It enabled me to build an earth sheltered home for a client at one-half the cost of a rectangular structure of approximately the same size.  Performance Building Systems, LLC flew someone out from the home office to inspect the kit assembly and they were available by phone for any questions I had during construction.

Ben Brother, Idaho Falls, ID., Contractor

In terms of constructability, structural capability, quality assurance, construction cost and overall design potential, the thin-shell concrete structures offered by Performance Building Systems, Inc. are truly outstanding.  If I were presently planning to construct an earth sheltered dome or barrel arch out of thin-shell concrete, my purchase order would most certainly be placed with Performance Building Systems, LLC  I am very impressed with their system and product.

Richard Behr, Ph.D.P.E., Texas Tech University Engineering faculty member

The novel house is said to save 50% on heating and cooling.  Even more on upkeep.

U.S. News & World Report